Android Fragment外延

最新推荐文章于 2022-10-15 20:35:19 发布

一場煙雨侯初晴

最新推荐文章于 2022-10-15 20:35:19 发布

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本文链接：https://blog.youkuaiyun.com/LH_sunshine/article/details/90488958

博客介绍了LiftFragment、DialogFragment、pargerAdapter、pagerTablayout和PagerTitlestrip的用法。如LiftFragment需自定义类继承Fragment，重写相关方法；DialogFragment底层继承Fragment自带Dialog，也有特定重写和调用方式；pargerAdapter可添加额外空间，需重写四个方法等。

Fragment扩展

- LiftFragment

LiftFragment

用法：
自定义类继承Fragment
重写oncreate方法，调用selelistAdapter（）为list控件赋值
重写onlistItemclick（）实现listview的点击事件

listFragment 代码

// An highlighted block
public class Fragment1 extends ListFragment {
    String[] str={"北京","上海","广州","天津"};
    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
        return super.onCreateView(inflater, container, savedInstanceState);
    }

    @Override
    public void onCreate(@Nullable Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
       setListAdapter(new ArrayAdapter<String>(getActivity(),R.layout.support_simple_spinner_dropdown_item,str));
    }

    @Override
    public void onListItemClick(ListView l, View v, int position, long id) {
        super.onListItemClick(l, v, position, id);
        EventBus.getDefault().postSticky(str[position]);

    }
}

适配器

// An highlighted block
public class MyDalog extends DialogFragment {
    @Nullable
    @Override
    public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
        return inflater.inflate(R.layout.view3,container,false);
    }
}

DialogFragment
底层继承Fragment 自带Dialog

用法：
自定义类继承DialogFragment
重写Oncreate方法将自定义布局天冲给Fragment
在主类白这个方法new出来
对象.show（getSupportFragmentManager（）,字符串）
要设置在点击事件中

主类代码

// An highlighted block
public class MainActivity extends AppCompatActivity {
    Button button;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        button=findViewById(R.id.main_button);
        final FragmentManager manager=getSupportFragmentManager();
        FragmentTransaction transaction=manager.beginTransaction();
        Fragment1 fragment1 = new Fragment1();
        transaction.add(R.id.main_rela1,fragment1);

        Fragment2 fragment2 = new Fragment2();
        transaction.add(R.id.main_rela2,fragment2);
        transaction.commit();

        button.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                MyDalog myDalog = new MyDalog();
                myDalog.show(getSupportFragmentManager(),"dsds");
            }
        });